In how many years,the ratio of principal and interest will be 5:2 at a rate of 5% simple interest ?
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Answer: 8 years
Step-by-step explanation: 5*8 = 100*(2/5)
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answer : 8 yrs after the ratio of principal and interest will be 5 : 2 at a rate of 5 % simple interest.
a/c to question, ratio of principal and interest will be 5 : 2 at a rate of 5% simple interest.
proportionality constant is x.
principal = 5x and interest = 2x
using formula, S.I = P × r × t/100
⇒2x = 5x × 5 × t/100
⇒200 = 25t
⇒t = 200/25 = 8 yrs
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